Interior designer and Italian
Renaissance and Baroque specialist; wife of art historian Rudolf Wittkower. Holzmann met her future husband in Berlin in 1918 when she was just sixteen and he seventeen, but because of
their young ages waited until 1923 to marry. Principally an artist, she
established herself as an interior designer in Berlin. The couple, both
Jewish, fled
Nazi Germany in 1933 for London, where her husband was a British citizen by
birthright. She
continued her work there as a designer, specializing in apartment interiors and
furniture design. Both husband and wife were drawn to neo-Palladian
architecture. Margot carved the area out as a specialty. In 1963 and 1964 she co-wrote two works of artistic biography with her husband, Born Under Saturn and The Divine
Michelangelo.

It is the work she published in collaboration with her husband that is
most significant today. Born Under Saturn (1963) and The Divine
Michelangelo (1964) were both co-authored projects. She also assisted
on the first posthumous edition of her husband's volume in the Pelican History of
Art series, The Art and Architecture of Italy 1600-1750 (1980) as well
as smaller works.